Halloween

• Crystal Pumpkin Suspension Science from Little Bins, Little Hands
  Students can grow borax crystal pumpkins overnight!
  

• Math & Science Pumpkins from Oregon Agricultural in the Classroom Foundation
  Do pumpkins sink or float? Students engage in several lab activities using pumpkins.
  

• Spooky Diving Ghost from STEAMsational
  Put the pressure on this ghost to make it sink, then float up to the top once again.
  

• Fluffy Zombie Brain Slime from Little Bins, Little Hands
  Create this extra fluffy slime recipe in a brain-shaped (or Halloween themed) mold.

• Halloween Chemistry Demonstrations and Costumes from C&EN

A collection of ideas for sharing some spooky science.

• Genie in a Bottle from Flinn Scientific

When sodium iodide is dropped into a flask containing 30% hydrogen peroxide, a “magical” genie appears in the form of water vapor and oxygen.

• Using Dry Ice to make a Spoon Sing (Scream!) from ThoughtCo

Listen carefully for the sounds of Halloween screams.

• Amazing Bag of Blood from Kitchen Pantry Scientist

Stab a bag of “blood” without spilling a single drop in this easy Halloween demo.

• Frankenstein’s Hand from Mom it Forward

Frankenstein’s hand comes alive in this acid–base reaction.

• Halloween Dry Ice Secrets from Steve Spangler Science

A collection of demonstrations combining dry ice and Halloween.

• Science Project Runway, Farming Fashion, Chemistry Costumes from C&EN

Can’t think of a thing to wear to the Halloween party? Try one of these creative (and cheap!) chemistry-themed costumes.

• Periodic Graphics: The Chemistry of Pumpkins from C&EN

Pumpkins take front and center during this holiday. Learn about their chemistry before you carve.

• Carving Nanopumpkins, Slicing Fingers, Cutting Water from C&EN

These aren’t the perfect size to display on your front porch, but they’re some cool science.

• How to Keep Your Jack O’Lantern Looking Dapper Longer, from Smithsonian Magazine

Looking for ideas on how to keep your cut pumpkin pristine? This pumpkin expert has some suggestions

• Dressing for (Chemical Success) from ACS Chemical Education Today

Students dress in costume to represent an element from the periodic table.

• Make Glow-in-the-Dark Jell-O from Mom Advice

Add glowing Jell-O to your party menu with this recipe. (*link to food safety document)

• Laundry Detergent Glowing Skull from ThoughtCo

Create a collection of glowing skull Halloween decorations.

• Static Powered Dancing Ghost from Science Bob

This ghost wants to dance but needs your help—your balloon’s help, that is.

• Halloween Mystery Box Game from The Spruce

Feels like… brains! Try this creepy but fun way to hone your observational skills, without peeking in the box.

• Dressing for (Chemical Success) from ACS Chemical Education Today

Students dress in costume to represent an element from the periodic table.

• Make Glow-in-the-Dark Jell-O from Mom Advice

Add glowing Jell-O to your party menu with this recipe. (*link to food safety document)

• Laundry Detergent Glowing Skull from ThoughtCo

Create a collection of glowing skull Halloween decorations.

• Static Powered Dancing Ghost from Science Bob

This ghost wants to dance but needs your help—your balloon’s help, that is.

• Halloween Mystery Box Game from The Spruce

Feels like… brains! Try this creepy but fun way to hone your observational skills, without peeking in the box.